Multiple EMS Spindle Installation Guide

Transcription

1 Multiple EMS Spindle Installation Guide Revised: February 13, 2008 This document describes the Multiple Element Management System (EMS) Spindle installation for of the Cisco BTS Softswitch and explains how to use it. Understanding the Multiple EMS Spindle Installation The Multiple EMS Spindle installation introduces additional EMS spindles into the BTS system. This reduces the negative impact on provisioning throughput caused by input and output (I/O) contention, which customers have expressed concern about. The Multiple EMS Spindle installation enables the BTS to optionally support additional EMS spindles in a seamless, transparent manner with respect to existing (and future) functionality. The number of spindles that can be added depends on the host. The following combination is supported: 1280/1290 Four external drives via a single external drive chassis per EMS host An installation script will convert the BTS to leverage the additional spindles. The installation script includes the creation of file systems on the added spindles. The current directory structure will be used as is with various subdirectories becoming mount points. The installation script is capable of recognizing the host and the number of additional spindles and performs the conversion accordingly. An equivalent un-install script will un-install the additional spindles. The multiple spindle install/un-install scripts are independent of any existing BTS install/un-install scripts. The install script will need to be re-run only in the case of a fresh OS install. With a 1280/1290, the following combination of added external chassis and drives (one chassis and four drives added per EMS host) is supported as shown in Table 1. Table 1 Supported Combinations Qty Part Number Description 2 XTA3120R01A0T146Z Sun StorageTek 3120 Rack Ready, 146 GB (2 * 73 GB 10 Krpm disks), Ultra320 SCSI-JBOD, and 2 AC power supplies, RoHS-5 Compliant 4 XTA-SC1NC-73G10K Drive in SE3000 carrier, 73GB 10K RPM, U320 SCSI LVD, RoHS-6 Compliant Americas Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA USA 2008 Cisco Systems, Inc. All rights reserved.

2 Provisioning Multiple EMS Spindle Installation Guide In addition, two of the following SCSI cables as shown in Table 2 (either 0.8, 2, 4 or 10 meters to accommodate local requirements) are required. Table 2 SCSI Cables Oty Part Number Description 2 X1132A-Z SCSI Cable, 0.8 meter, SCSI-3 to VHDCI, RoHS-6 Compliant 2 X3832A-Z UltraSCSI Cable, 2 meter, HD68 to VHDC, RoHS-6 Compliant 2 X3830A-Z 4-meter HD68 to VHDCI68 differential Ultra SCSI cable, RoHS-6 Compliant 2 X3831A-Z 10-meter HD68 to VHDCI68 differential Ultra SCSI cable, RoHS-6 Compliant Other part numbers and combinations of the specified part numbers are not supported. Constraints: Support will be limited to the combinations of hosts and additional spindles as indicated. An EMS may have a single pair of spindles or a single pair of spindles with additional spindles. The additional EMS may have a single pair of spindles or a single pair of spindles and additional spindles. Prerequisites The Multiple EMS Spindle installation is dependent on BTS capabilities embodied in Solaris 0606, which is mandatory for BTS Release MR1 and later. Provisioning The implementation of the Multiple EMS Spindle installation provides a single executable script that will, when executed, migrate the Oracle database from its current location on the /opt partition to a new zfs file system on a new disk pool. The disk pool consists of four additional spindles, as dictated by system requirements, and is composed of two mirrored strips. The new file system (or file systems) will retain exactly the same hierarchy as the current directory structure. The current directory entries become mount points for the new file system(s) and will be persistent across reboots and operating system (OS) or application upgrades. Installation and Disk Replacement Procedures The following sections contain the installation and disk replacement procedures associated with the Cisco BTS Softswitch Multiple EMS Spindle installation. 2

3 Multiple EMS Spindle Installation Guide Installation and Disk Replacement Procedures Element Management System External Disk Replacement Note This section applies only to the replacement of a disk drive in a StorageTek 3120 JBOD external drive chassis as described in this installation guide and the movement of the Oracle database to the external spindles using the referenced db2ext script as directed. Prior to executing the following procedures, the db2ext script has to be run with the single parameter move to create the file system used for the Oracle database. Example: /opt/utils/db2ext move For more information on this topic, refer to the External Disk Installation section. Log in as root. Determine which disk needs to be replaced. A disk needing replacement will have a status other than ONLINE, as shown for c2t8d0. The drive to replace corresponds to the tnn in the drive number and will be labeled as such on the drive chassis. In the example it is labeled d8. Example: <hostname># zpool status pool: Orapool state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM Orapool DEGRADED mirror DEGRADED c2t8d0 FAULTY c2t9d0 ONLINE mirror ONLINE c2t10d0 ONLINE c2t11d0 ONLINE Note Step 4 If all platforms on this node are ACTIVE, then you need to switch over to the STANDBY side using the CLI command. Deactivate the defective drive prior to removal using the following two commands: <hostname># zpool offline Orapool c2t8d0 <hostname># cfgadm -c unconfigure c2::dsk/c2t8d0 3

4 Installation and Disk Replacement Procedures Multiple EMS Spindle Installation Guide Step 5 Replace the defective drive and then activate it with the following two commands: <hostname># cfgadm -c configure c2::dsk/c2t8d0 <hostname># zpool online Orapool c2t8d0 The newly replaced drive will automatically be mirrored. The progress of the mirroring operation may be monitored using the status command given previously. When completed it will appear as follows: <hostname># zpool status Orapool pool: Orapool state: ONLINE scrub: resilver completed with 0 errors on Tue Oct 23 12:22: config: NAME STATE READ WRITE CKSUM Orapool ONLINE mirror ONLINE c2t9d0 ONLINE c2t8d0 ONLINE mirror ONLINE c2t10d0 ONLINE c2t11d0 ONLINE For additional information consult the Solaris ZFS Administration Guide available at For cabling instructions for the chassis itself refer to the Sun StorEdge 3120 SCSI Array Quick Installation Guide shipped with your storage array. 4

5 Multiple EMS Spindle Installation Guide Installation and Disk Replacement Procedures Element Management System External Disk Installation You must first shut down the EMS software on the standby host to which you are attaching the array. The following steps will make the storage array visible to the Solaris OS. Execute the touch command with reconfigure parameter. <hostname># touch /reconfigure Execute a sync as shown. <hostname># sync; shutdown -y -g0 -i 5 For cabling instructions for the chassis refer to the Sun StorEdge 3120 SCSI Array Quick Installation Guide shipped with your storage array. The array should be installed as a single bus single initiator array, with the short bridge cable connecting ports 1 and 4 with the ports numbered left to right as viewed from the rear. The long SCSI cable will connect the 1280 EMS host to port 2 on the array, the second port from the left as viewed from the rear. The db2ext script is delivered in the BTSemtools package and resides in the /opt/utils folder. The script is self documenting, by entering /opt/utils/db2ext with no parameters. It is assumed that the db2ext script has been run to create the file system used for the Oracle database. To create the file system, run the script with the move parameter. Example: /opt/utils/db2ext move Step 4 Use the db2ext script with move parameter to move the Oracle database. <hostname># db2ext move Execute the platform start command. <hostname># platform start Switch over the active platform and repeat on the other now standby host. 5

6 Installation and Disk Replacement Procedures Multiple EMS Spindle Installation Guide Element Management System External Disk Deactivation If for any reason you need to move the Oracle database from the external drive array back to its initial internal drive location do the following: Step 4 Use the db2ext script with the unmove parameter to move the Oracle database back to its initial internal drive location. <hostname># db2ext unmove Execute the platform start command. <hostname># platform start Switch over the active platform and repeat on the other now standby host. CCVP, the Cisco logo, and Welcome to the Human Network are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is a service mark of Cisco Systems, Inc.; and Access Registrar, Aironet, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, Follow Me Browsing, FormShare, GigaDrive, HomeLink, Internet Quotient, IOS, iphone, IP/TV, iq Expertise, the iq logo, iq Net Readiness Scorecard, iquick Study, LightStream, Linksys, MeetingPlace, MGX, Networkers, Networking Academy, Network Registrar, PIX, ProConnect, ScriptShare, SMARTnet, StackWise, The Fastest Way to Increase Your Internet Quotient, and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries. All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0711R) Copyright 2007 Cisco Systems, Inc. All rights reserved. 6